K2-388 b
A confirmed exoplanet orbiting K2-388.
Compared with Earth
- Size
- About 3.9 times Earth's width.
- Temperature
- About 601 °C (1,114 °F) from starlight alone, against -18 °C (-1 °F) for Earth measured the same way.
- Starlight
- About 138 times the starlight Earth gets from the Sun.
- Year
- A year here lasts about 6.3 Earth days.
Planet
- Radius
- 3.9 × Earth
- Mass
- Unknown
- Density
- Unknown
- Equilibrium temperature
- 874 K
- Starlight received
- 138 × Earth
- Orbital period
- 6.339 days
- Average distance from its star
- Unknown
Star
- Host star
- K2-388
- Spectral class
- G — sun-like
- Surface temperature
- 5,310 K
- Radius
- 0.91 × Sun
- Mass
- 0.93 × Sun
- Age
- Unknown
System
- Distance from Earth
- 947.5 light-years (290.5 parsecs)
- Stars in system
- 1
- Known planets
- 1
Discovery
- Year
- 2022
- Method
- Transit
- Facility
- K2
Data from the NASA Exoplanet Archive, synced October 14, 2026.